/**
* gst_tag_setter_get_tag_merge_mode:
* @setter: a #GstTagSetter
*
* Queries the mode by which tags inside the setter are overwritten by tags
* from events
*
* Returns: the merge mode used inside the element.
*/
GstTagMergeMode
gst_tag_setter_get_tag_merge_mode (GstTagSetter * setter)
{
g_return_val_if_fail (GST_IS_TAG_SETTER (setter), FALSE);
return gst_tag_setter_get_data (setter)->mode;
}
/**
* gst_tag_setter_get_tag_list:
* @setter: a #GstTagSetter
*
* Returns the current list of tags the setter uses. The list should not be
* modified or freed.
*
* Returns: a current snapshot of the taglist used in the setter
* or NULL if none is used.
*/
G_CONST_RETURN GstTagList *
gst_tag_setter_get_tag_list (GstTagSetter * setter)
{
g_return_val_if_fail (GST_IS_TAG_SETTER (setter), NULL);
return gst_tag_setter_get_data (setter)->list;
}
/**
* gst_tag_setter_set_tag_merge_mode:
* @setter: a #GstTagSetter
* @mode: The mode with which tags are added
*
* Sets the given merge mode that is used for adding tags from events to tags
* specified by this interface. The default is #GST_TAG_MERGE_KEEP, which keeps
* the tags set with this interface and discards tags from events.
*/
void
gst_tag_setter_set_tag_merge_mode (GstTagSetter * setter, GstTagMergeMode mode)
{
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
gst_tag_setter_get_data (setter)->mode = mode;
}
/*
* metadata_write_probe:
* @pad: sink pad of metadata muxer
* @buffer: received buffer
* @u_data: image bin object
*
* Buffer probe that sets Xmp.dc.type and Xmp.dc.format tags
* to metadata muxer based on preceding element src pad caps.
*
* Returns: TRUE always
*/
static gboolean
metadata_write_probe (GstPad * pad, GstBuffer * buffer, gpointer u_data)
{
/* Add XMP tags */
GstCameraBinImage *img = NULL;
GstTagSetter *setter = NULL;
GstPad *srcpad = NULL;
GstCaps *caps = NULL;
GstStructure *st = NULL;
img = GST_CAMERABIN_IMAGE (u_data);
g_return_val_if_fail (img != NULL, TRUE);
if (GST_IS_TAG_SETTER (img->formatter)) {
setter = GST_TAG_SETTER (img->formatter);
}
if (!setter) {
GST_WARNING_OBJECT (img, "setting tags failed");
goto done;
}
/* Xmp.dc.type tag */
gst_tag_setter_add_tags (setter, GST_TAG_MERGE_REPLACE,
GST_TAG_CODEC, "Image", NULL);
/* Xmp.dc.format tag */
if (img->enc) {
srcpad = gst_element_get_static_pad (img->enc, "src");
}
GST_LOG_OBJECT (img, "srcpad:%" GST_PTR_FORMAT, srcpad);
if (srcpad) {
caps = gst_pad_get_negotiated_caps (srcpad);
GST_LOG_OBJECT (img, "caps:%" GST_PTR_FORMAT, caps);
if (caps) {
/* If there are many structures, we can't know which one to use */
if (gst_caps_get_size (caps) != 1) {
GST_WARNING_OBJECT (img, "can't decide structure for format tag");
goto done;
}
st = gst_caps_get_structure (caps, 0);
if (st) {
GST_DEBUG_OBJECT (img, "Xmp.dc.format:%s", gst_structure_get_name (st));
gst_tag_setter_add_tags (setter, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, gst_structure_get_name (st), NULL);
}
}
}
done:
if (caps)
gst_caps_unref (caps);
if (srcpad)
gst_object_unref (srcpad);
return TRUE;
}
GstTagSetter *setter() {
if (!device || !device->d_ptr->cameraBin) {
return 0;
}
if (!GST_IS_TAG_SETTER(device->d_ptr->cameraBin)) {
return 0;
}
return GST_TAG_SETTER(gst_object_ref(device->d_ptr->cameraBin));
}
/**
* gst_tag_setter_add_tag_values:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @...: more tag / GValue pairs to set
*
* Adds the given tag / GValue pairs on the setter using the given merge mode.
* The list must be terminated with NULL.
*/
void
gst_tag_setter_add_tag_values (GstTagSetter * setter, GstTagMergeMode mode,
const gchar * tag, ...)
{
va_list args;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
va_start (args, tag);
gst_tag_setter_add_tag_valist_values (setter, mode, tag, args);
va_end (args);
}
/**
* gst_tag_setter_reset_tags:
* @setter: a #GstTagSetter
*
* Reset the internal taglist. Elements should call this from within the
* state-change handler.
*
* Since: 0.10.22
*/
void
gst_tag_setter_reset_tags (GstTagSetter * setter)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
data = gst_tag_setter_get_data (setter);
if (data->list) {
gst_tag_list_free (data->list);
data->list = NULL;
}
}
/**
* gst_tag_setter_set_tag_merge_mode:
* @setter: a #GstTagSetter
* @mode: The mode with which tags are added
*
* Sets the given merge mode that is used for adding tags from events to tags
* specified by this interface. The default is #GST_TAG_MERGE_KEEP, which keeps
* the tags set with this interface and discards tags from events.
*/
void
gst_tag_setter_set_tag_merge_mode (GstTagSetter * setter, GstTagMergeMode mode)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
g_static_mutex_lock (&data->lock);
data->mode = mode;
g_static_mutex_unlock (&data->lock);
}
/**
* gst_tag_setter_add_tag_valist_values:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @var_args: tag / GValue pairs to set
*
* Adds the given tag / GValue pairs on the setter using the given merge mode.
* The list must be terminated with NULL.
*/
void
gst_tag_setter_add_tag_valist_values (GstTagSetter * setter,
GstTagMergeMode mode, const gchar * tag, va_list var_args)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
if (!data->list)
data->list = gst_tag_list_new ();
gst_tag_list_add_valist_values (data->list, mode, tag, var_args);
}
/**
* gst_tag_setter_get_tag_merge_mode:
* @setter: a #GstTagSetter
*
* Queries the mode by which tags inside the setter are overwritten by tags
* from events
*
* Returns: the merge mode used inside the element.
*/
GstTagMergeMode
gst_tag_setter_get_tag_merge_mode (GstTagSetter * setter)
{
GstTagMergeMode mode;
GstTagData *data;
g_return_val_if_fail (GST_IS_TAG_SETTER (setter), FALSE);
data = gst_tag_setter_get_data (setter);
g_static_mutex_lock (&data->lock);
mode = data->mode;
g_static_mutex_unlock (&data->lock);
return mode;
}
/**
* gst_tag_setter_merge_tags:
* @setter: a #GstTagSetter
* @list: a tag list to merge from
* @mode: the mode to merge with
*
* Merges the given list into the setter's list using the given mode.
*/
void
gst_tag_setter_merge_tags (GstTagSetter * setter, const GstTagList * list,
GstTagMergeMode mode)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
g_return_if_fail (GST_IS_TAG_LIST (list));
data = gst_tag_setter_get_data (setter);
if (data->list == NULL) {
if (mode != GST_TAG_MERGE_KEEP_ALL)
data->list = gst_tag_list_copy (list);
} else {
gst_tag_list_insert (data->list, list, mode);
}
}
/**
* gst_tag_setter_add_tag_value:
* @setter: a #GstTagSetter
* @mode: the mode to use
* @tag: tag to set
* @value: GValue to set for the tag
*
* Adds the given tag / GValue pair on the setter using the given merge mode.
*
* Since: 0.10.24
*/
void
gst_tag_setter_add_tag_value (GstTagSetter * setter,
GstTagMergeMode mode, const gchar * tag, const GValue * value)
{
GstTagData *data;
g_return_if_fail (GST_IS_TAG_SETTER (setter));
g_return_if_fail (GST_TAG_MODE_IS_VALID (mode));
data = gst_tag_setter_get_data (setter);
g_static_mutex_lock (&data->lock);
if (!data->list)
data->list = gst_tag_list_new ();
gst_tag_list_add_value (data->list, mode, tag, value);
g_static_mutex_unlock (&data->lock);
}
